PowerOnPlayJ.J.'s DN-HC4500 + Serato Scratch Live XML MIDI Mapper - PowerOnPlay
Midi Program Change # to Midi Note # solution for older foot controllers (free software needed) - YouTube
MidiPipe for Mac - Download
MidiPipe AppleScript for macOS to reconfigure the AKAI APC 40 mk2 MIDI controller to execute Undo (Cmd-Z) and Redo (Shift-Cmd-Z) in Ableton Live with the controller's 'NUDGE -' and 'NUDGE +' buttons,
Irig Blueboard - On on message using MidiPipe (mac) - YouTube
4 Essential Mac Apps for Working with MIDI | Hacked by tokeichun